Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Coordination between posture and movement: interaction between postural and accuracy constraints.

Félix Berrigan1, Martin Simoneau, Olivier Martin

  • 1Groupe de Recherche en Analyse du Mouvement et Ergonomie (GRAME), Département de Médecine Sociale et Préventive, Division de Kinésiologie, Université Laval, PEPS, Quebec, QC, Canada, G1K 7P4.

Experimental Brain Research
|December 6, 2005
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Impaired trunk sensorimotor control during isometric force reproduction involving rotation and extension in adolescents with idiopathic scoliosis.

North American Spine Society journal·2026
Same author

Dairy herd responses to annual heat load mainly differ depending on geographical localization, calving distribution, and milk yield: A study based on commercial data farms.

Journal of dairy science·2026
Same author

Implementation, Outcomes, and Sustainability of a School-Based Physical Activity Initiative.

The Journal of school health·2026
Same author

The state of motor neural networks in low back pain: a systematic review and meta-analysis.

The journal of pain·2026
Same author

Sexual Violence in University Sports Teams: Female Student-Athletes' Experiences in Three Quebec Higher Education Institutions.

Violence against women·2026
Same author

Factors influencing corticomuscular coherence for axial and lower limb musculature in a healthy population: a scoping review.

Frontiers in human neuroscience·2026

Posture significantly impacts aiming movements. Standing increases aiming difficulty more than sitting, revealing complex interactions between balance control and speed-accuracy trade-offs in movement.

Area of Science:

  • Biomechanics
  • Motor Control
  • Human Movement Science

Background:

  • Posture and voluntary movements are often studied separately.
  • Understanding the interplay between postural control and goal-directed movements is crucial for explaining human motor behavior.

Purpose of the Study:

  • To investigate how postural context (seated vs. standing) influences the control of aiming movements.
  • To determine if aiming task difficulty is solely dependent on target size or also affected by postural constraints.

Main Methods:

  • Subjects performed aiming movements to targets of varying sizes (0.5-5 cm) from seated and standing positions.
  • Movement time (MT) and center of pressure (CP) kinematics were analyzed using a Fitts' law paradigm.
  • Coordination between trunk and arm, and CP displacement/speed were examined in relation to target size and postural condition.

Related Experiment Videos

Main Results:

  • Movement time followed Fitts' law in both conditions, but was greater for smaller targets when standing.
  • Standing revealed trunk-arm coordination and increased CP displacement without increased speed as target size decreased.
  • Seated posture showed CP kinematics scaled with hand movement, with strong correlations between hand and CP speed/displacement at higher difficulty.

Conclusions:

  • Postural constraints significantly modulate aiming movement control and difficulty.
  • The interaction between posture and aiming reveals a complex organization influencing speed-accuracy trade-offs.
  • Center of pressure regulation plays a key role in stabilizing the body to facilitate accurate aiming movements, particularly when standing.